Automate Lemmy with Grok Bot

Post to Lemmy communities, share links across the fediverse, and cross-post to multiple communities — all from the command line or through your AI agent.

Setup Guide Marketplace

Please make sure there is always a human in the loop.

Post to Lemmy in Seconds

Grok Bot

# In any Bot chat, add the Postiz plugin
/add-plugin postiz

# Store POSTIZ_API_KEY as a Bot secret when prompted.
# Your Bot can now run Postiz on its cloud computer:

# Find your Lemmy integration
postiz integrations:list

# Post to a Lemmy community
postiz posts:create \
  -c "Check out this interesting article about open source!" \
  -s "2025-01-15T10:00:00Z" \
  --settings '{"subreddit":[{"value":{"subreddit":"technology","id":"comm-id","title":"Check this out"}}]}' \
  -i "your-lemmy-integration-id"

Lemmy-Specific Features

🏘️

Community Posting

Post directly to any Lemmy community. Target specific communities by name and ID for precise content distribution.

🔗

Link Posts

Share URLs alongside your post content. Perfect for sharing articles, resources, and external content with your communities.

🌐

Federated Network

Reach users across the entire fediverse. Your posts on one Lemmy instance are visible to federated instances automatically.

🔀

Cross-Community Posting

Post to multiple Lemmy communities in a single request. Share content across related communities to maximize reach.

📝

Custom Titles

Set unique titles for each community post. Tailor your headlines to match the culture and expectations of each community.

📅

Scheduled Posting

Schedule posts with precise timestamps. Plan your community engagement ahead of time and post at peak activity hours.

How It Works

Find Your Lemmy Integration

List your connected accounts and grab your Lemmy integration ID. You can also fetch available settings to see what options are supported.

Discovery

# List all integrations
postiz integrations:list

# Filter for Lemmy
postiz integrations:list | jq \
  '.[] | select(.identifier=="lemmy")'

# Get Lemmy settings schema
postiz integrations:settings <lemmy-id>

Choose Your Communities

Identify the Lemmy communities you want to post to. Each community requires a name, ID, and a post title. You can optionally include a URL for link posts.

Configuration

# Example community configuration
# subreddit = community name
# id = community ID from your instance
# title = post title (required, min 2 chars)
# url = optional link URL

echo '{
  "subreddit": [
    {
      "value": {
        "subreddit": "technology",
        "id": "comm-123",
        "title": "Great article on AI",
        "url": "https://example.com/article"
      }
    }
  ]
}'

Create Your Post

Schedule a Lemmy post with your content, target communities, and optional link URL. Posts can target one or multiple communities at once.

Post Creation

postiz posts:create \
  -c "Thoughts on the future of open source" \
  -s "2025-03-01T09:00:00Z" \
  --settings '{
    "subreddit": [
      {
        "value": {
          "subreddit": "technology",
          "id": "comm-123",
          "title": "The Future of Open Source",
          "url": "https://example.com/article"
        }
      }
    ]
  }' \
  -i "lemmy-id"

Lemmy Settings Reference

Every Lemmy post accepts these platform-specific settings via the --settings flag.

Field	Type	Required	Description
`__type`	string	Yes	Must be "lemmy"
`subreddit`	array	Yes	Array of community objects: [{value: {subreddit, id, title, url?}}]
`subreddit[].value.subreddit`	string	Yes	Community name (min 2 characters)
`subreddit[].value.id`	string	Yes	Community ID on the Lemmy instance
`subreddit[].value.title`	string	Yes	Post title (min 2 characters)
`subreddit[].value.url`	string	No	Optional URL for link posts

Common Configurations

Copy-paste these settings for common Lemmy posting scenarios.

Simple Text Post to One Community

settings.json

{
  "subreddit": [
    {
      "value": {
        "subreddit": "technology",
        "id": "comm-123",
        "title": "Interesting discussion on AI agents"
      }
    }
  ]
}

Link Post with URL

settings.json

{
  "subreddit": [
    {
      "value": {
        "subreddit": "opensource",
        "id": "comm-456",
        "title": "New open-source social media tool",
        "url": "https://github.com/gitroomhq/postiz-app"
      }
    }
  ]
}

Cross-Post to Multiple Communities

settings.json

{
  "subreddit": [
    {
      "value": {
        "subreddit": "technology",
        "id": "comm-123",
        "title": "AI-powered social media automation"
      }
    },
    {
      "value": {
        "subreddit": "selfhosted",
        "id": "comm-789",
        "title": "Self-host your social media scheduler"
      }
    },
    {
      "value": {
        "subreddit": "opensource",
        "id": "comm-456",
        "title": "Open-source alternative to Buffer"
      }
    }
  ]
}

What is Grok Bot?

Grok Bot is the always-on AI teammate product from xAI and Cursor. You create named Bots, give each one a job, and they work 24/7 on their own persistent cloud computer — with a browser, a filesystem, and a terminal — pinging you only when they need approval.

Grok Bot is not the Grok chatbot. Grok is the assistant you chat with on X and grok.com. Grok Bot is a separate app for delegating real, multi-step work — like running your Lemmy presence with Postiz.

💻

Own Cloud Computer

Every Bot gets a persistent cloud machine with a terminal. Postiz runs there, so your Lemmy posts go out even when your laptop is closed.

🔁

Routines

Turn any task into a routine that runs on a schedule. Your Bot drafts, schedules, and reports on Lemmy content without being asked twice.

🛡️

Approvals Built In

Bots ask before changing external systems. Review the Lemmy posts your Bot prepared in Postiz, approve, and it publishes.

How Postiz Works with Grok Bot

Postiz is listed on the Grok Bot plugin marketplace. Add it to a Bot and the Postiz skill, CLI, and command reference are installed on its cloud computer — the Bot can then manage your Lemmy workflow on its own.

✓Type /add-plugin postiz in a Bot chat, or add it from the Plugins sidebar
✓Store your POSTIZ_API_KEY as a Bot secret when prompted
✓The Bot reads the bundled SKILL.md and learns every Postiz command
✓Works in every Bot on your shared workspace, on desktop and iPhone
✓Approvals keep a human in the loop before anything is published

Grok Bot

# 1. Add the plugin to your Bot
/add-plugin postiz

# 2. Store your Postiz API key
#    as a secret when prompted

# 3. Ask your Bot to verify
You: Find my Lemmy channel in Postiz

Bot: Running postiz integrations:list
  Found your Lemmy integration.
  All Postiz commands are ready.

Lemmy Posting with Grok Bot

Your Bot reads the Postiz skill, discovers your Lemmy integration, and handles the entire posting workflow — from content creation to scheduling — on its own cloud computer.

🧠

Message Your Bot

Desktop, iPhone, or a group chat

Send a message to your Bot from the desktop app or your iPhone. It runs on its own cloud computer, so it picks up your message, discovers your Lemmy account via Postiz, uploads your media, and schedules the post — then asks you to approve before it goes live.

Grok Bot

You: Post to Lemmy about our new
  feature launch, schedule for tomorrow
  at 9am

Bot: Got it! Here's the plan:
  1. Find your Lemmy integration
  2. Compose your post content
  3. Schedule for tomorrow 9:00 AM

  Done! Post scheduled successfully.
  Post ID: abc-123

🧠

Routines

Recurring work on a schedule

Save the task as a routine. Your Bot runs it on a schedule from the cloud, checks for new content, and posts it to Lemmy automatically — no manual trigger needed.

Grok Bot routine

Routine: daily-lemmy-posts
Schedule: Weekdays at 9:00 AM

Instructions:
  Check ~/content/posts on your cloud
  computer for new .txt files. For
  each one, read the content and
  schedule a post to Lemmy for
  today at noon via Postiz. Move
  posted files to ~/content/published
  and send me a summary.

Why Grok Bot + Postiz for Lemmy

Grok Bot makes Postiz a natural fit for your Lemmy workflow. The Bot reads the plugin's skill, chains the right commands together, and keeps running from the cloud.

✓Official plugin — one command install from the marketplace
✓Always on — posts to Lemmy from the cloud while you are away
✓Terminal access runs Postiz commands directly on the Bot's computer
✓Routines for hands-free daily posting
✓Cross-post to Lemmy + other platforms in a single conversation
✓Approvals keep a human in the loop before publishing

SKILL.md (bundled in the plugin)

---
name: postiz
description: Social media automation
  CLI for scheduling posts across
  30+ platforms including Lemmy
metadata:
  grok-bot:
    plugin: postiz
    secrets:
      - POSTIZ_API_KEY
    binaries:
      - postiz
---

# Available Commands
- postiz integrations:list
- postiz integrations:settings <id>
- postiz posts:create
- postiz upload <file>
- postiz analytics:platform <id>

# Lemmy Settings
subreddit (array of communities),
each with: subreddit, id, title, url

Also Works with Claude Code

Postiz Agent works as a CLI tool with any AI agent that can execute shell commands — including Anthropic's Claude Code.

Claude Code

by Anthropic

Claude reads the SKILL.md file to learn all available Postiz commands, then autonomously discovers your Lemmy integration, composes your post with the right community settings, and schedules it.

Claude Code

> Post an article about our new release
  to the technology and opensource
  communities on Lemmy

Claude will automatically run:
  postiz integrations:list
  postiz posts:create \
    -c "We just launched v2.0!" \
    -s "2025-03-02T09:00:00Z" \
    --settings '{"subreddit":[
      {"value":{"subreddit":"technology",
        "id":"comm-123",
        "title":"New Release v2.0",
        "url":"https://blog.example.com"}},
      {"value":{"subreddit":"opensource",
        "id":"comm-456",
        "title":"Open Source Release v2.0",
        "url":"https://blog.example.com"}}
    ]}' \
    -i "lemmy-id"

Lemmy + Other Platforms

Schedule the same content to Lemmy and other platforms in a single command. Each platform gets its own settings.

Terminal

# Post to Lemmy and Reddit simultaneously
postiz posts:create \
  -c "Check out our new open-source project! #opensource" \
  -s "2025-03-01T09:00:00Z" \
  --settings '{
    "subreddit": [
      {
        "value": {
          "subreddit": "technology",
          "id": "comm-123",
          "title": "New open-source social media tool"
        }
      }
    ]
  }' \
  -i "lemmy-id,reddit-id"

# Batch schedule a week of Lemmy content
for day in 1 2 3 4 5; do
  postiz posts:create \
    -c "Day $day community highlight! #fediverse" \
    -s "2025-03-0${day}T10:00:00Z" \
    --settings '{"subreddit":[{"value":{"subreddit":"technology","id":"comm-123","title":"Day '"$day"' Highlight"}}]}' \
    -i "lemmy-id"
done

Start posting to Lemmy

Install Postiz Agent and automate your Lemmy community engagement with AI-powered scheduling and publishing.

Get Started

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